This study presents the cyclic performance of a reinforced concrete (RC) frame retrofitted using carbon fiber-reinforced polymer (CFRP) jackets. A damaged two-story non-ductile RC frame with the open ground story and the masonry-infilled top story was considered as the test specimen in the experimental investigation. Only shear-damaged ground story columns were retrofitted using CFRP jacketing. The retrofitted frame was subjected to a gradually-increasing reversed cyclic lateral loading to investigate its lateral strength, mode of failure, displacement ductility, and the energy dissipation potential. Test results showed that the retrofitted frame sustained a roof drift of 2.5% without any substantial reduction in the lateral resistance. An analytical investigation was also carried out to predict the lateral strength and displacement ductility of the retrofitted frame using the theoretical models available in the literature. The analytical model predicted the lateral strength of the retrofitted frame to a reasonable accuracy.

中文翻译：

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带有开放地面层的CFRP改建的两层RC框架的横向循环性能

这项研究介绍了使用碳纤维增强聚合物（CFRP）护套翻新的钢筋混凝土（RC）框架的循环性能。在实验研究中，将带有露天地面和砖石填充顶层的受损的两层非延性钢筋混凝土框架作为测试样本。仅使用CFRP护套对受剪切破坏的地层柱进行了改造。改装后的框架承受逐渐增加的反向循环侧向载荷，以研究其侧向强度，破坏模式，位移延展性和能量耗散潜力。测试结果表明，改装后的车架可保持2.5％的车顶位移，而侧向阻力没有任何实质性的降低。还使用文献中提供的理论模型进行了分析研究，以预测翻新车架的侧向强度和位移延性。分析模型将改装框架的侧向强度预测为合理的精度。